Answer by Gaetan for How to switch the cursor between terminal and code in VSCode?

Here is how to have the same hotkey to switch back and forth from code to terminal for maximum productivity:

    {"key": "f1","command": "workbench.action.focusActiveEditorGroup","when": "terminalFocus"    },    {"key": "f1","command": "workbench.action.terminal.focusNext","when": "!terminalFocus"    },